EP 1188813 B1 20051228 - Lubricants comprising friction modifiers
Title (en)
Lubricants comprising friction modifiers
Title (de)
Schmiermittel mit reibungsverändernden Zusätzen
Title (fr)
Lubrifiants comprenant des modificateurs de frottement
Publication
Application
Priority
US 66557100 A 20000919
Abstract (en)
[origin: US6303547B1] The reaction product of at least one C5-C60 carboxylic acid and at least one amine selected from the group consisting of guanidine, aminoguanidine, urea, thioruea and salts thereof is useful as a gear oil additive. The lubricant formulations exhibit excellent low and high temperature rheology and are particularly suited for use in automotive and industrial gear applications. Lubricants of the present invention exhibit improved performance properties, such as increased axle efficiencies and lower axle temperatures, improved limited slip performance, reduced chatter, improved frictional durability and/or improved power divider performance compared to lubricant formulations that do not contain said reaction products.
IPC 1-7
IPC 8 full level
C10M 129/32 (2006.01); C10M 129/40 (2006.01); C10M 133/20 (2006.01); C10M 133/22 (2006.01); C10M 135/16 (2006.01); C10M 159/12 (2006.01); C10M 169/04 (2006.01); C10N 30/06 (2006.01); C10N 30/08 (2006.01); C10N 30/10 (2006.01); C10N 30/12 (2006.01); C10N 30/18 (2006.01); C10N 40/04 (2006.01)
CPC (source: EP US)
C10M 133/20 (2013.01 - EP US); C10M 135/16 (2013.01 - EP US)
Designated contracting state (EPC)
BE DE FR GB
DOCDB simple family (publication)
US 6303547 B1 20011016; CN 1313580 C 20070502; CN 1344785 A 20020417; DE 60116204 D1 20060202; DE 60116204 T2 20060824; EP 1188813 A1 20020320; EP 1188813 B1 20051228; JP 2002129184 A 20020509
DOCDB simple family (application)
US 66557100 A 20000919; CN 01133157 A 20010919; DE 60116204 T 20010919; EP 01307976 A 20010919; JP 2001277800 A 20010913